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<?php |
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Symfony\Component\Console\Command; |
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use Symfony\Component\Console\Descriptor\TextDescriptor; |
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use Symfony\Component\Console\Descriptor\XmlDescriptor; |
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use Symfony\Component\Console\Input\InputDefinition; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Output\BufferedOutput; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Symfony\Component\Console\Application; |
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use Symfony\Component\Console\Helper\HelperSet; |
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/** |
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* Base class for all commands. |
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* |
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* @author Fabien Potencier <[email protected]> |
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* |
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* @api |
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*/ |
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class Command |
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{ |
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private $application; |
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private $name; |
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private $processTitle; |
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private $aliases = array(); |
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private $definition; |
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private $help; |
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private $description; |
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private $ignoreValidationErrors = false; |
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private $applicationDefinitionMerged = false; |
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private $applicationDefinitionMergedWithArgs = false; |
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private $code; |
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private $synopsis; |
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private $helperSet; |
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/** |
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* Constructor. |
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* |
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* @param string|null $name The name of the command; passing null means it must be set in configure() |
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* |
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* @throws \LogicException When the command name is empty |
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* |
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* @api |
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*/ |
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public function __construct($name = null) |
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{ |
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$this->definition = new InputDefinition(); |
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if (null !== $name) { |
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$this->setName($name); |
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} |
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$this->configure(); |
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if (!$this->name) { |
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throw new \LogicException(sprintf('The command defined in "%s" cannot have an empty name.', get_class($this))); |
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} |
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} |
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/** |
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* Ignores validation errors. |
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* |
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* This is mainly useful for the help command. |
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*/ |
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public function ignoreValidationErrors() |
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{ |
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$this->ignoreValidationErrors = true; |
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} |
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/** |
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* Sets the application instance for this command. |
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* |
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* @param Application $application An Application instance |
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* |
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* @api |
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*/ |
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public function setApplication(Application $application = null) |
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{ |
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$this->application = $application; |
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if ($application) { |
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$this->setHelperSet($application->getHelperSet()); |
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} else { |
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$this->helperSet = null; |
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} |
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} |
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/** |
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* Sets the helper set. |
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* |
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* @param HelperSet $helperSet A HelperSet instance |
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*/ |
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public function setHelperSet(HelperSet $helperSet) |
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{ |
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$this->helperSet = $helperSet; |
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} |
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/** |
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* Gets the helper set. |
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* |
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* @return HelperSet A HelperSet instance |
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*/ |
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public function getHelperSet() |
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{ |
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return $this->helperSet; |
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} |
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/** |
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* Gets the application instance for this command. |
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* |
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* @return Application An Application instance |
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* |
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* @api |
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*/ |
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public function getApplication() |
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{ |
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return $this->application; |
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} |
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/** |
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* Checks whether the command is enabled or not in the current environment. |
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* |
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* Override this to check for x or y and return false if the command can not |
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* run properly under the current conditions. |
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* |
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* @return bool |
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*/ |
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public function isEnabled() |
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{ |
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return true; |
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} |
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/** |
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* Configures the current command. |
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*/ |
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protected function configure() |
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{ |
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} |
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/** |
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* Executes the current command. |
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* |
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* This method is not abstract because you can use this class |
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* as a concrete class. In this case, instead of defining the |
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* execute() method, you set the code to execute by passing |
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* a Closure to the setCode() method. |
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* |
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* @param InputInterface $input An InputInterface instance |
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* @param OutputInterface $output An OutputInterface instance |
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* |
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* @return null|int null or 0 if everything went fine, or an error code |
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* |
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* @throws \LogicException When this abstract method is not implemented |
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* |
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* @see setCode() |
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*/ |
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protected function execute(InputInterface $input, OutputInterface $output) |
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{ |
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throw new \LogicException('You must override the execute() method in the concrete command class.'); |
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} |
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/** |
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* Interacts with the user. |
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* |
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* This method is executed before the InputDefinition is validated. |
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* This means that this is the only place where the command can |
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* interactively ask for values of missing required arguments. |
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* |
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* @param InputInterface $input An InputInterface instance |
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* @param OutputInterface $output An OutputInterface instance |
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*/ |
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protected function interact(InputInterface $input, OutputInterface $output) |
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{ |
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} |
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/** |
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* Initializes the command just after the input has been validated. |
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* |
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* This is mainly useful when a lot of commands extends one main command |
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* where some things need to be initialized based on the input arguments and options. |
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* |
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* @param InputInterface $input An InputInterface instance |
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* @param OutputInterface $output An OutputInterface instance |
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*/ |
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protected function initialize(InputInterface $input, OutputInterface $output) |
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{ |
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} |
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/** |
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* Runs the command. |
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* |
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* The code to execute is either defined directly with the |
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* setCode() method or by overriding the execute() method |
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* in a sub-class. |
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* |
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* @param InputInterface $input An InputInterface instance |
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* @param OutputInterface $output An OutputInterface instance |
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* |
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* @return int The command exit code |
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* |
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* @throws \Exception |
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* |
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* @see setCode() |
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* @see execute() |
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* |
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* @api |
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*/ |
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public function run(InputInterface $input, OutputInterface $output) |
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{ |
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// force the creation of the synopsis before the merge with the app definition |
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$this->getSynopsis(); |
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// add the application arguments and options |
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$this->mergeApplicationDefinition(); |
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// bind the input against the command specific arguments/options |
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try { |
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$input->bind($this->definition); |
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} catch (\Exception $e) { |
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if (!$this->ignoreValidationErrors) { |
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throw $e; |
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} |
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} |
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$this->initialize($input, $output); |
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if (null !== $this->processTitle) { |
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if (function_exists('cli_set_process_title')) { |
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cli_set_process_title($this->processTitle); |
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} elseif (function_exists('setproctitle')) { |
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setproctitle($this->processTitle); |
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} elseif (OutputInterface::VERBOSITY_VERY_VERBOSE === $output->getVerbosity()) { |
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$output->writeln('<comment>Install the proctitle PECL to be able to change the process title.</comment>'); |
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} |
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} |
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if ($input->isInteractive()) { |
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$this->interact($input, $output); |
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} |
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$input->validate(); |
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if ($this->code) { |
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$statusCode = call_user_func($this->code, $input, $output); |
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} else { |
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$statusCode = $this->execute($input, $output); |
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} |
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return is_numeric($statusCode) ? (int) $statusCode : 0; |
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} |
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/** |
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* Sets the code to execute when running this command. |
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* |
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* If this method is used, it overrides the code defined |
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* in the execute() method. |
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* |
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* @param callable $code A callable(InputInterface $input, OutputInterface $output) |
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* |
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* @return Command The current instance |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @see execute() |
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* |
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* @api |
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*/ |
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public function setCode($code) |
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{ |
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if (!is_callable($code)) { |
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throw new \InvalidArgumentException('Invalid callable provided to Command::setCode.'); |
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} |
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$this->code = $code; |
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return $this; |
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} |
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/** |
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* Merges the application definition with the command definition. |
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* |
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* This method is not part of public API and should not be used directly. |
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* |
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* @param bool $mergeArgs Whether to merge or not the Application definition arguments to Command definition arguments |
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*/ |
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public function mergeApplicationDefinition($mergeArgs = true) |
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{ |
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if (null === $this->application || (true === $this->applicationDefinitionMerged && ($this->applicationDefinitionMergedWithArgs || !$mergeArgs))) { |
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return; |
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} |
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if ($mergeArgs) { |
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$currentArguments = $this->definition->getArguments(); |
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$this->definition->setArguments($this->application->getDefinition()->getArguments()); |
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$this->definition->addArguments($currentArguments); |
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} |
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$this->definition->addOptions($this->application->getDefinition()->getOptions()); |
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$this->applicationDefinitionMerged = true; |
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if ($mergeArgs) { |
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$this->applicationDefinitionMergedWithArgs = true; |
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} |
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} |
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/** |
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* Sets an array of argument and option instances. |
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* |
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* @param array|InputDefinition $definition An array of argument and option instances or a definition instance |
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* |
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* @return Command The current instance |
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* |
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* @api |
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*/ |
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public function setDefinition($definition) |
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{ |
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if ($definition instanceof InputDefinition) { |
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$this->definition = $definition; |
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} else { |
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$this->definition->setDefinition($definition); |
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} |
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$this->applicationDefinitionMerged = false; |
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return $this; |
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} |
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/** |
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* Gets the InputDefinition attached to this Command. |
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* |
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* @return InputDefinition An InputDefinition instance |
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* |
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* @api |
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*/ |
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public function getDefinition() |
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{ |
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return $this->definition; |
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} |
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/** |
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* Gets the InputDefinition to be used to create XML and Text representations of this Command. |
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* |
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* Can be overridden to provide the original command representation when it would otherwise |
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* be changed by merging with the application InputDefinition. |
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* |
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* This method is not part of public API and should not be used directly. |
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* |
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* @return InputDefinition An InputDefinition instance |
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*/ |
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public function getNativeDefinition() |
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{ |
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return $this->getDefinition(); |
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} |
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/** |
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* Adds an argument. |
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* |
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* @param string $name The argument name |
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* @param int $mode The argument mode: InputArgument::REQUIRED or InputArgument::OPTIONAL |
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* @param string $description A description text |
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* @param mixed $default The default value (for InputArgument::OPTIONAL mode only) |
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* |
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* @return Command The current instance |
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* |
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* @api |
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*/ |
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public function addArgument($name, $mode = null, $description = '', $default = null) |
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{ |
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$this->definition->addArgument(new InputArgument($name, $mode, $description, $default)); |
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return $this; |
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} |
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/** |
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* Adds an option. |
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* |
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* @param string $name The option name |
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* @param string $shortcut The shortcut (can be null) |
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* @param int $mode The option mode: One of the InputOption::VALUE_* constants |
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* @param string $description A description text |
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* @param mixed $default The default value (must be null for InputOption::VALUE_REQUIRED or InputOption::VALUE_NONE) |
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* |
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|
|
* @return Command The current instance |
395
|
|
|
* |
396
|
|
|
* @api |
397
|
|
|
*/ |
398
|
|
|
public function addOption($name, $shortcut = null, $mode = null, $description = '', $default = null) |
399
|
|
|
{ |
400
|
|
|
$this->definition->addOption(new InputOption($name, $shortcut, $mode, $description, $default)); |
401
|
|
|
|
402
|
|
|
return $this; |
403
|
|
|
} |
404
|
|
|
|
405
|
|
|
/** |
406
|
|
|
* Sets the name of the command. |
407
|
|
|
* |
408
|
|
|
* This method can set both the namespace and the name if |
409
|
|
|
* you separate them by a colon (:) |
410
|
|
|
* |
411
|
|
|
* $command->setName('foo:bar'); |
412
|
|
|
* |
413
|
|
|
* @param string $name The command name |
414
|
|
|
* |
415
|
|
|
* @return Command The current instance |
416
|
|
|
* |
417
|
|
|
* @throws \InvalidArgumentException When the name is invalid |
418
|
|
|
* |
419
|
|
|
* @api |
420
|
|
|
*/ |
421
|
|
|
public function setName($name) |
422
|
|
|
{ |
423
|
|
|
$this->validateName($name); |
424
|
|
|
|
425
|
|
|
$this->name = $name; |
426
|
|
|
|
427
|
|
|
return $this; |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
/** |
431
|
|
|
* Sets the process title of the command. |
432
|
|
|
* |
433
|
|
|
* This feature should be used only when creating a long process command, |
434
|
|
|
* like a daemon. |
435
|
|
|
* |
436
|
|
|
* PHP 5.5+ or the proctitle PECL library is required |
437
|
|
|
* |
438
|
|
|
* @param string $title The process title |
439
|
|
|
* |
440
|
|
|
* @return Command The current instance |
441
|
|
|
*/ |
442
|
|
|
public function setProcessTitle($title) |
443
|
|
|
{ |
444
|
|
|
$this->processTitle = $title; |
445
|
|
|
|
446
|
|
|
return $this; |
447
|
|
|
} |
448
|
|
|
|
449
|
|
|
/** |
450
|
|
|
* Returns the command name. |
451
|
|
|
* |
452
|
|
|
* @return string The command name |
453
|
|
|
* |
454
|
|
|
* @api |
455
|
|
|
*/ |
456
|
|
|
public function getName() |
457
|
|
|
{ |
458
|
|
|
return $this->name; |
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
/** |
462
|
|
|
* Sets the description for the command. |
463
|
|
|
* |
464
|
|
|
* @param string $description The description for the command |
465
|
|
|
* |
466
|
|
|
* @return Command The current instance |
467
|
|
|
* |
468
|
|
|
* @api |
469
|
|
|
*/ |
470
|
|
|
public function setDescription($description) |
471
|
|
|
{ |
472
|
|
|
$this->description = $description; |
473
|
|
|
|
474
|
|
|
return $this; |
475
|
|
|
} |
476
|
|
|
|
477
|
|
|
/** |
478
|
|
|
* Returns the description for the command. |
479
|
|
|
* |
480
|
|
|
* @return string The description for the command |
481
|
|
|
* |
482
|
|
|
* @api |
483
|
|
|
*/ |
484
|
|
|
public function getDescription() |
485
|
|
|
{ |
486
|
|
|
return $this->description; |
487
|
|
|
} |
488
|
|
|
|
489
|
|
|
/** |
490
|
|
|
* Sets the help for the command. |
491
|
|
|
* |
492
|
|
|
* @param string $help The help for the command |
493
|
|
|
* |
494
|
|
|
* @return Command The current instance |
495
|
|
|
* |
496
|
|
|
* @api |
497
|
|
|
*/ |
498
|
|
|
public function setHelp($help) |
499
|
|
|
{ |
500
|
|
|
$this->help = $help; |
501
|
|
|
|
502
|
|
|
return $this; |
503
|
|
|
} |
504
|
|
|
|
505
|
|
|
/** |
506
|
|
|
* Returns the help for the command. |
507
|
|
|
* |
508
|
|
|
* @return string The help for the command |
509
|
|
|
* |
510
|
|
|
* @api |
511
|
|
|
*/ |
512
|
|
|
public function getHelp() |
513
|
|
|
{ |
514
|
|
|
return $this->help; |
515
|
|
|
} |
516
|
|
|
|
517
|
|
|
/** |
518
|
|
|
* Returns the processed help for the command replacing the %command.name% and |
519
|
|
|
* %command.full_name% patterns with the real values dynamically. |
520
|
|
|
* |
521
|
|
|
* @return string The processed help for the command |
522
|
|
|
*/ |
523
|
|
|
public function getProcessedHelp() |
|
|
|
|
524
|
|
|
{ |
525
|
|
|
$name = $this->name; |
526
|
|
|
|
527
|
|
|
$placeholders = array( |
528
|
|
|
'%command.name%', |
529
|
|
|
'%command.full_name%', |
530
|
|
|
); |
531
|
|
|
$replacements = array( |
532
|
|
|
$name, |
533
|
|
|
$_SERVER['PHP_SELF'].' '.$name, |
534
|
|
|
); |
535
|
|
|
|
536
|
|
|
return str_replace($placeholders, $replacements, $this->getHelp()); |
537
|
|
|
} |
538
|
|
|
|
539
|
|
|
/** |
540
|
|
|
* Sets the aliases for the command. |
541
|
|
|
* |
542
|
|
|
* @param string[] $aliases An array of aliases for the command |
543
|
|
|
* |
544
|
|
|
* @return Command The current instance |
545
|
|
|
* |
546
|
|
|
* @throws \InvalidArgumentException When an alias is invalid |
547
|
|
|
* |
548
|
|
|
* @api |
549
|
|
|
*/ |
550
|
|
|
public function setAliases($aliases) |
551
|
|
|
{ |
552
|
|
|
if (!is_array($aliases) && !$aliases instanceof \Traversable) { |
553
|
|
|
throw new \InvalidArgumentException('$aliases must be an array or an instance of \Traversable'); |
554
|
|
|
} |
555
|
|
|
|
556
|
|
|
foreach ($aliases as $alias) { |
557
|
|
|
$this->validateName($alias); |
558
|
|
|
} |
559
|
|
|
|
560
|
|
|
$this->aliases = $aliases; |
561
|
|
|
|
562
|
|
|
return $this; |
563
|
|
|
} |
564
|
|
|
|
565
|
|
|
/** |
566
|
|
|
* Returns the aliases for the command. |
567
|
|
|
* |
568
|
|
|
* @return array An array of aliases for the command |
569
|
|
|
* |
570
|
|
|
* @api |
571
|
|
|
*/ |
572
|
|
|
public function getAliases() |
573
|
|
|
{ |
574
|
|
|
return $this->aliases; |
575
|
|
|
} |
576
|
|
|
|
577
|
|
|
/** |
578
|
|
|
* Returns the synopsis for the command. |
579
|
|
|
* |
580
|
|
|
* @return string The synopsis |
581
|
|
|
*/ |
582
|
|
|
public function getSynopsis() |
583
|
|
|
{ |
584
|
|
|
if (null === $this->synopsis) { |
585
|
|
|
$this->synopsis = trim(sprintf('%s %s', $this->name, $this->definition->getSynopsis())); |
586
|
|
|
} |
587
|
|
|
|
588
|
|
|
return $this->synopsis; |
589
|
|
|
} |
590
|
|
|
|
591
|
|
|
/** |
592
|
|
|
* Gets a helper instance by name. |
593
|
|
|
* |
594
|
|
|
* @param string $name The helper name |
595
|
|
|
* |
596
|
|
|
* @return mixed The helper value |
597
|
|
|
* |
598
|
|
|
* @throws \InvalidArgumentException if the helper is not defined |
599
|
|
|
* |
600
|
|
|
* @api |
601
|
|
|
*/ |
602
|
|
|
public function getHelper($name) |
603
|
|
|
{ |
604
|
|
|
return $this->helperSet->get($name); |
605
|
|
|
} |
606
|
|
|
|
607
|
|
|
/** |
608
|
|
|
* Returns a text representation of the command. |
609
|
|
|
* |
610
|
|
|
* @return string A string representing the command |
611
|
|
|
* |
612
|
|
|
* @deprecated Deprecated since version 2.3, to be removed in 3.0. |
613
|
|
|
*/ |
614
|
|
View Code Duplication |
public function asText() |
615
|
|
|
{ |
616
|
|
|
$descriptor = new TextDescriptor(); |
617
|
|
|
$output = new BufferedOutput(BufferedOutput::VERBOSITY_NORMAL, true); |
618
|
|
|
$descriptor->describe($output, $this, array('raw_output' => true)); |
619
|
|
|
|
620
|
|
|
return $output->fetch(); |
621
|
|
|
} |
622
|
|
|
|
623
|
|
|
/** |
624
|
|
|
* Returns an XML representation of the command. |
625
|
|
|
* |
626
|
|
|
* @param bool $asDom Whether to return a DOM or an XML string |
627
|
|
|
* |
628
|
|
|
* @return string|\DOMDocument An XML string representing the command |
629
|
|
|
* |
630
|
|
|
* @deprecated Deprecated since version 2.3, to be removed in 3.0. |
631
|
|
|
*/ |
632
|
|
View Code Duplication |
public function asXml($asDom = false) |
633
|
|
|
{ |
634
|
|
|
$descriptor = new XmlDescriptor(); |
635
|
|
|
|
636
|
|
|
if ($asDom) { |
637
|
|
|
return $descriptor->getCommandDocument($this); |
638
|
|
|
} |
639
|
|
|
|
640
|
|
|
$output = new BufferedOutput(); |
641
|
|
|
$descriptor->describe($output, $this); |
642
|
|
|
|
643
|
|
|
return $output->fetch(); |
644
|
|
|
} |
645
|
|
|
|
646
|
|
|
/** |
647
|
|
|
* Validates a command name. |
648
|
|
|
* |
649
|
|
|
* It must be non-empty and parts can optionally be separated by ":". |
650
|
|
|
* |
651
|
|
|
* @param string $name |
652
|
|
|
* |
653
|
|
|
* @throws \InvalidArgumentException When the name is invalid |
654
|
|
|
*/ |
655
|
|
|
private function validateName($name) |
656
|
|
|
{ |
657
|
|
|
if (!preg_match('/^[^\:]++(\:[^\:]++)*$/', $name)) { |
658
|
|
|
throw new \InvalidArgumentException(sprintf('Command name "%s" is invalid.', $name)); |
659
|
|
|
} |
660
|
|
|
} |
661
|
|
|
} |
662
|
|
|
|
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.